Stitch picking device



Oct. 27, 1931. L c o 1,828,764

STITCH PICKING DEVICE Filed A rii 8. 1950 #1 M Mk 14 Zoazlr (ii/alto Patented Oct. 27, 1931 UNITED STATES LOUIS GITRANO, F HUNTSVILLE, ALABAMA srrrcn rrcxme nnvrcn I f Application filed April 8,

My invention relates to improvements in stitch picking devices or the like, and more particularly to devices for removing stitches from the soles of shoes.

An important objectof my invention is the provision of a device ofthe above mentioned character which will effectively remove the stitches from the soles of shoes or the like.

Another object of my invention is to provide a device of this character which may be readily applied to a shoe makers machine without making changes in such machine.

Other objects and advantages of my invention will be apparent during the course'of the following description.

In the accompanying drawings, which form a part of this specification and wherein like characters of reference denote like or corresponding parts throughout the same,

Figure 1 is a side elevation of a shaft having my invention applied thereto,

' Figure 2 is an elevation of the stitch picking unit,

Figure 3 is a central longitudinal sectional view through my improved device, and,

Figure 4 is a transverse sectional view on the line 83 of Figure 3.

In the drawings, whereinfor the purpose of illustration is shown a preferred embodiment of my invention, the numeral 10 designates a shaft on a shoe makers machine, or the like, having a reduced extension 11 at its end. A generally oylindrically shaped cutfor or picker wheel 12 has a central opening or bore 13 which receives the reduced end of the shaft. An end plate or guard 14 is in the form of a disk and is provided with a central circular projection 15 which isof'sub- 0 stantially the same diameter as the bore 13 within which it is adapted to fit. A bolt or screw 16 extends through the guard plate 14 and into a screw threaded opening in the end of the shaft 10. When the bolt 16 istightsued the picker wheel 12 is securely clamped between the guard plate 14 and the shoulder formed by the reduction in size of the shaft 10.

The periphery of the picker wheelis provided with a plurality of rows 17 of teeth 18, the rows extending longitudinally of the radially beyond the teeth on the periphery 1930. Serial Ira-442,619.

periphery of the cylinder 12 and being arranged with their forward sides in line-with a plane drawn through the row of teeth and the center of the cylindery and their rear faces being inclined to their forward sides I; as seen in Figures 2 and 4. The relative positions of the straightand inclined faces of the rows 17 depend upon the direction of rotation of the shaft, as shown bythe arrows in Figures 2 and 4'. m

The individual teeth 18 are formed by notching the row 17 at spaced intervals, and are so arranged that the teeth in adjacent rows are staggered. With this arrangement the whole surface of a shoe sole engaged by (as the picker will be covered by the teeth 18 and all of the stitches effectively removed.

If desired the bore 13 may be formed half of one size, and the other half of a different size as shown in dot-ted lines 19 in Figure 2 7 in order to accommodate shafts of different sizes. 7

The guard plate 14 is of greater diameter than the cylindrical picker 12 and extends formed by the outer edge of the plate 14 while the stitches are being removed.

While I have shown and described the preferred embodiment of my invention it is to be understood that various changes in the size, shape and arrangement of parts may be resorted to without departing from the spirit of my invention or the scope of the subjoined claim. v

Having thus described my invention, what I claim and desire to protect by Letters Patent is:

A stitch picker comprising a rotatable cylindrical member, and stitch picking teeth arranged in axialrows onfthe periphery of said cylindrical member, theteeth in adjacent rows being arranged in staggered relation relative to each other.

In testimony whereof I affix my signature.

LOUIS OITRANO. 

